To white out, to get paranoid whilst stoned
He's deffin...
by nick July 18, 2003
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to be deffin, you are worryed and upset over something, for example, hes deffin about his fone bill
for example, hes deffin about his fone bill
hes gota b deffin that he got punched
by matty jones nd wot October 15, 2006
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Not wanting to do something, not liking the idea of something, or having a bad experience.

Opposite of buzzin

More commonly used between drug users
I'd deff if I broke my leg.
He's deffed us by not coming out, deffer.
I'm deffin over having too much to drink, I feel sick.
by UB40 December 28, 2006
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